Engine



Feb. 23 1926.

A. PETT|CORE ENGINE Filed March 25, i925 2 Sheets-$heet 1 Feb. y

I 1,574,686 A. PETTICORE ENGINE Filed March 25. 1925 2 Sheets-Sheei; 2

Patented Feb. 23, 1926. v

UNITED STATES 1,574,686 PATENT OFFICE. I

ANTHONY PET'IIGQR-E, or snnno WOOLLEY', WASHINGTON.

nivernn.

Application filed March 23, 1925. Serial No. 17,645.

To all whom it may concern:

Be it known that I, ANTHONY Pn'r'ri'ooun, a citizen of the United States, residing at Scdro Woolley, in the county of Skagit and State of Washington, have invented new and useful Improvements in Engines, of which the following is a specification.

. This invention relates to improvements in engines and has for an object the provision of a novelconstruction and arrangement of intake and exhaust valves, which operate to provide a free passage into and from-the engine cylinder or cylinders and thus admit a proper fuel charge and an unobstructed outlet for the expanded fuel.

Another object of the invention is the provision of means for insuring proper lubrication of the valves and in addition providing ready and convenient access thereto without removing the engine head.

With the above and other objects in view, the invention further includes the following novel features and details of construction, to

be hereinafter more fully described, illustrated in the accompanying drawlngs and pointed out in the appended claims.

In the drawings a Figure 1 is a fragmentary sectional view showing a portion of an engine constructed in accordance with the invention.

Figure 2 is a fragmentary horizontal sectional view taken substantially on the line 2-2 of Figure 1.

Figure 3 is a fragmentary vertical section taken through the valve chambers.

Figure 4 is a view similar to Figure l but showing a different arrangement of valves.

Figure 5 is an enlarged elevation of one of the valves with the spacing sleeve in section.

Referring to the drawings in detail wherein like characters of reference denote corresponding parts, the invention is shown in connection with an internal combustion engine, the cylinders of which are indicated at 10. Operating within the cylinders 10 are pistons 11., while located adjacent the cylinders-are valve chambers 12. r

The valve chambers are cylindrical in form and operating within these chambers preferably provided with suitable packing rings 16 and one or both members may be provided with oil ports -.17. 'The space between the valve members 13 forms a passage which is adapted to be moved into and out of communication with diametrically located ports 18 and 19, the first mentioned ports providing communication with the cylinders 10 while the ports 19 may provide communication with intake and exhaust manifolds 20. The pistons 11 are so limited in their travel as not to pass the port 18, the space between the heads of the pistons and the heads of the cylinders forming a combustion chamber into and out of which the fuel charge and expanded gases are permitted unobstructed passage. A spark plug 21 is provided for each of the combustion chambers. Both the engine-cylinders and the valve chambers are preferably provided with water jackets -or water circulating chambers 22.

As shown in the drawings the valve members 13 are of hollow construction, one member 'of each of the valves receiving one end of a coiled spring 23. This spring extends into an oil chamber or reservoir 2a provided by an extension of the valve chamber and act to hold the latter in position.

Extending around the upper ends of the valve chambers 12 into the oil chambers or reservoirs 24: are annular flanges 28, while communicating with the oil chamber is one end of a pipe or conduit 29, the latter being designed to provide an overflow pipe and being positioned to maintain an oil level of a depth equal to the height of the flanges 28, so that the valves will receive just the proper amount of oil. The opposite end of the pipe or conduit 29 communicates with the crank case 30 of the engine so that excess oil from the oil chambers will flow into the crank case. A valve 31 is provided for controlling the pipe or conduit 29. Oil is splashed into the opposite or lower ends of the valve chambers through openings 32.

In addition to providing proper lubrication for the valves, the oil chambers or reservoirs 2 1 accommodate the valve springs and by removing the heads or covers 25, these springs may be conveniently removed and access conveniently had to the valves.

, ings.

a cam shaft which is driven in the usual or any preferred manner.

The lower valve member 13 is provided with spaced openings 36 which incline inwardly and downwardly and act to collect surplus oil from the walls of the valve chamber,- so that the said oil may drop downward into the crank case of the engine. InFigures 1, 2 and 8, the intake and exhaust valves are all operated by a single crank shaft 35 as is usual in engines of this type. However, the valves may be positioned upon opposite sides of the engine cylinder as shown in Figure 4 of the draw- In this construction separate cam shafts 35 are provided, the camsv 34 'of which act upon the push rods to operate the valves against the springs 23.

In valves ofthis type it is not necessary to provide any clearance between the push rods and valve stems, so that noise from this cause is overcome. a

The'invention is susceptible of various changes in its form, proportions and'minor details of construction and the right is here- 7 inreserved to make'such changes as properly fall within the scope of the appended claims. Having described the invention what is claimed is -1. In an engine, a cylinder, cylindrical valve chambers communicating with the cylinder and having inlet and exhaust ports, reciprocatory valves mounted within the valve chambers, each valve comprising spaced cylindrical members adapted to control communication between the cylinder and inlet and exhaust ports of the valve chambers, an oil chamber at one end of the valve chambers, springs within the oil' chambers and bearing against the valves to yieldingly force the latter in one direction and means to move the valves in an opposlte (hrection.

2. In an engine, a cylinder, cylindrical valve chambers, diametrically arranged ports located in the walls of the valve chambers and communicating with the engine cylinder, reciprocatory valves within the valve chambers, each of said valves including spaced cylindrical members, the space between said members defining a passage adapted to be moved into and out of register with the ports, oil reservoirs at one end of the valve chambers, a removable cap for the oil chambers, springs having one end bearing against the cap and their other ends bearing against the valves to yieldingly force the latter in one direction and means to move the valves in an opposite direction.

3. In an engine, a cylinder, cylindrical valve chambers, diametrically arranged ports located in the walls of the valve chambers and communicating with the engine cylinder, reciprocatory valves within the valve chambers, each of said valves including"spaced cylindrical members, the space between said members defining a passage adapted to be moved into and out of register with the ports, oil reservoirs at one end of the valve chambers, a removable cap for the oil chambers, springs having one end bearing against the cap and their other ends bearing against the valves to yieldingly force the latter in one direction and means to move the valves in an opposite direction, an annular flange extending around the upper edge of the valve chambers into the oil chamber to regulate the level of oil in the last mentioned chamber and an overflow for the oil chamber.

- ,In testimony whereof, I affix my signature.

ANTHONY PETTICORE. 

